Durable dry drilling in masonry! High-quality diamond grit and matrix for durability and performance. Drilling into the hardest building materials is challenging, but with the PRO Core Cutter dry, you will definitely get the job done. It is durable and sharp enough to penetrate all materials. The quality and durability of the PRO Core Cutter dry are evident in its premium diamond coating in a high-performance metal matrix for exceptional longevity and efficiency.